151132231 has 2 divisors, whose sum is σ = 151132232. Its totient is φ = 151132230.

The previous prime is 151132207. The next prime is 151132237. The reversal of 151132231 is 132231151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 151132231 - 2¹¹ = 151130183 is a prime.

It is a super-2 number, since 2×151132231² = 45681902494074722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 151132199 and 151132208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (151132237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 75566115 + 75566116.

It is an arithmetic number, because the mean of its divisors is an integer number (75566116).

Almost surely, 2^151132231 is an apocalyptic number.

151132231 is a deficient number, since it is larger than the sum of its proper divisors (1).

151132231 is an equidigital number, since it uses as much as digits as its factorization.

151132231 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 180, while the sum is 19.

The square root of 151132231 is about 12293.5849531371. The cubic root of 151132231 is about 532.6627960741.

Adding to 151132231 its reverse (132231151), we get a palindrome (283363382).

The spelling of 151132231 in words is "one hundred fifty-one million, one hundred thirty-two thousand, two hundred thirty-one".